Hat with arched ribs



FIG. 1 is a perspective view showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left and right side elevation thereof;

FIG. 4 is a front and rear view thereof; and,

FIG. 5 is a bottom plan view thereof.

FIGS. 2 through 5 are on a reduced scale. 

The ornamental design for a hat with arched ribs, as shown and described. 